package com.ruibo.config.thread;

import org.springframework.stereotype.Component;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * @CLassName TheadFactoryName
 * @Description 自定义线程名称
 * @Author 孙峰
 * @Date 2020/1/1 14:49
 * @Version 1.0
 */
@Component
public class TheadFactoryName implements ThreadFactory {
    private static final AtomicInteger POOL_NUMBER = new AtomicInteger(1);
    private final ThreadGroup group;
    private final AtomicInteger threadNumber = new AtomicInteger(1);
    //线程名称
    private final String namePrefix;

    public TheadFactoryName() {
        this("ruibo-pool");
    }

    private TheadFactoryName(String name){
        SecurityManager s = System.getSecurityManager();
        // 获取线程组
        group = (s != null) ? s.getThreadGroup() :
                Thread.currentThread().getThreadGroup();
        //此时namePrefix就是 name + 第几个用这个工厂创建线程池的
        this.namePrefix = name +
                POOL_NUMBER.getAndIncrement();
    }

    @Override
    public Thread newThread(Runnable r) {
        //此时线程的名字 就是 namePrefix + -thread- + 这个线程池中第几个执行的线程
        Thread thread = new Thread(group, r,
                namePrefix + "-thread-"+threadNumber.getAndIncrement(),
                0);
        if (thread.isDaemon()) {
            thread.setDaemon(false);
        }
        if (thread.getPriority() != Thread.NORM_PRIORITY) {
            thread.setPriority(Thread.NORM_PRIORITY);
        }
        return thread;
    }
}
